Relief pitcher
US5133330A · kind A · utility
Inventor
Key dates
| Filing date | Jul 3, 1991 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Jul 3, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B69/409
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An economical relief pitcher in which there is employed a plurality of tubes, at least one of them being employed as a firing tube and at least one being employed for storing balls to be fired, the firing tube being connected with a high volume source of air. A remote push actuator can be employed to actuate a rocker arm and actuator device for allowing a single ball at a time into the firing tube which is connected with a high volume source of air for firing. A delay is employed for effecting a delay from the pushing of the push actuator until the ball is fired. A lower tapered orifice is preferably employed for creating a suction pressure to help the balls get into the firing tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.